Cesar Antonio Luchesa, Thiago Thomaz Mafort, Rafael Rodrigues da Silva, Isabela Cristina Paro, Fernanda Micheli de Souza, Agnaldo José Lopes
{"title":"巴西肥胖男性减肥手术术前6分钟步行试验中步行距离的参考价值","authors":"Cesar Antonio Luchesa, Thiago Thomaz Mafort, Rafael Rodrigues da Silva, Isabela Cristina Paro, Fernanda Micheli de Souza, Agnaldo José Lopes","doi":"10.1155/2021/9577412","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Obesity has several effects on the mechanics of the rib cage that may impair the exercise performance of obese individuals and therefore impact the assessment of surgical risk. This study aimed to establish a reference value for the 6-minute walk distance (6 MWD) in obese Brazilian men in the preoperative period of bariatric surgery that considers the effect of lung function.</p><p><strong>Methods: </strong>This was a cross-sectional study in which 104 obese men underwent the six-minute walk test (6 MWT) before bariatric surgery. They also underwent the spirometry test and respiratory muscle strength measurement before the 6 MWT.</p><p><strong>Results: </strong>The 6 MWD was correlated with age (<i>r</i> = -0.388, <i>p</i>=0.0005), weight (<i>r</i> = -0.365, <i>p</i>=0.0007), height (<i>r</i> = 0.285, <i>p</i>=0.022), body mass index (BMI) (<i>r</i> = -0.543, <i>p</i> < 0.0001), forced vital capacity (FVC) (<i>r</i> = 0.472, <i>p</i> < 0.0001), peak expiratory flow (<i>r</i> = 0.253, <i>p</i>=0.031), and maximal inspiratory pressure (<i>r</i> = 0.313, <i>p</i>=0.017). In the stepwise forward regression analysis, BMI, FVC, and age were the only variables that independently predicted the 6 MWD and explained 40% of its variability. The reference equation proposed for obese Brazilian men is 6 MWD (<i>m</i>) = 570.5 - (3.984 × BMI<sub>kg/m2</sub>) + (1.093 × FVC<sub>%predicted</sub>) - (0.836 × age<sub>yrs</sub>).</p><p><strong>Conclusion: </strong>In this sample of obese Brazilian men, lung function contributed to poor performance in the 6 MWT. In these individuals, BMI, FVC, and age were the variables that composed the reference equation for the 6 MWD. Thus, in several clinical settings, such as in the evaluation before bariatric surgery, pulmonary function data are important to determine the reference value for the 6 MWD.</p>","PeriodicalId":16628,"journal":{"name":"Journal of Obesity","volume":"2021 ","pages":"9577412"},"PeriodicalIF":3.8000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8282397/pdf/","citationCount":"1","resultStr":"{\"title\":\"Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery.\",\"authors\":\"Cesar Antonio Luchesa, Thiago Thomaz Mafort, Rafael Rodrigues da Silva, Isabela Cristina Paro, Fernanda Micheli de Souza, Agnaldo José Lopes\",\"doi\":\"10.1155/2021/9577412\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Obesity has several effects on the mechanics of the rib cage that may impair the exercise performance of obese individuals and therefore impact the assessment of surgical risk. This study aimed to establish a reference value for the 6-minute walk distance (6 MWD) in obese Brazilian men in the preoperative period of bariatric surgery that considers the effect of lung function.</p><p><strong>Methods: </strong>This was a cross-sectional study in which 104 obese men underwent the six-minute walk test (6 MWT) before bariatric surgery. They also underwent the spirometry test and respiratory muscle strength measurement before the 6 MWT.</p><p><strong>Results: </strong>The 6 MWD was correlated with age (<i>r</i> = -0.388, <i>p</i>=0.0005), weight (<i>r</i> = -0.365, <i>p</i>=0.0007), height (<i>r</i> = 0.285, <i>p</i>=0.022), body mass index (BMI) (<i>r</i> = -0.543, <i>p</i> < 0.0001), forced vital capacity (FVC) (<i>r</i> = 0.472, <i>p</i> < 0.0001), peak expiratory flow (<i>r</i> = 0.253, <i>p</i>=0.031), and maximal inspiratory pressure (<i>r</i> = 0.313, <i>p</i>=0.017). In the stepwise forward regression analysis, BMI, FVC, and age were the only variables that independently predicted the 6 MWD and explained 40% of its variability. The reference equation proposed for obese Brazilian men is 6 MWD (<i>m</i>) = 570.5 - (3.984 × BMI<sub>kg/m2</sub>) + (1.093 × FVC<sub>%predicted</sub>) - (0.836 × age<sub>yrs</sub>).</p><p><strong>Conclusion: </strong>In this sample of obese Brazilian men, lung function contributed to poor performance in the 6 MWT. In these individuals, BMI, FVC, and age were the variables that composed the reference equation for the 6 MWD. Thus, in several clinical settings, such as in the evaluation before bariatric surgery, pulmonary function data are important to determine the reference value for the 6 MWD.</p>\",\"PeriodicalId\":16628,\"journal\":{\"name\":\"Journal of Obesity\",\"volume\":\"2021 \",\"pages\":\"9577412\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2021-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8282397/pdf/\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Obesity\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1155/2021/9577412\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENDOCRINOLOGY & METABOLISM\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Obesity","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1155/2021/9577412","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
Reference Value for the Distance Walked in the Six-Minute Walk Test in Obese Brazilian Men in the Preoperative Period of Bariatric Surgery.
Background: Obesity has several effects on the mechanics of the rib cage that may impair the exercise performance of obese individuals and therefore impact the assessment of surgical risk. This study aimed to establish a reference value for the 6-minute walk distance (6 MWD) in obese Brazilian men in the preoperative period of bariatric surgery that considers the effect of lung function.
Methods: This was a cross-sectional study in which 104 obese men underwent the six-minute walk test (6 MWT) before bariatric surgery. They also underwent the spirometry test and respiratory muscle strength measurement before the 6 MWT.
Results: The 6 MWD was correlated with age (r = -0.388, p=0.0005), weight (r = -0.365, p=0.0007), height (r = 0.285, p=0.022), body mass index (BMI) (r = -0.543, p < 0.0001), forced vital capacity (FVC) (r = 0.472, p < 0.0001), peak expiratory flow (r = 0.253, p=0.031), and maximal inspiratory pressure (r = 0.313, p=0.017). In the stepwise forward regression analysis, BMI, FVC, and age were the only variables that independently predicted the 6 MWD and explained 40% of its variability. The reference equation proposed for obese Brazilian men is 6 MWD (m) = 570.5 - (3.984 × BMIkg/m2) + (1.093 × FVC%predicted) - (0.836 × ageyrs).
Conclusion: In this sample of obese Brazilian men, lung function contributed to poor performance in the 6 MWT. In these individuals, BMI, FVC, and age were the variables that composed the reference equation for the 6 MWD. Thus, in several clinical settings, such as in the evaluation before bariatric surgery, pulmonary function data are important to determine the reference value for the 6 MWD.
期刊介绍：
Journal of Obesity is a peer-reviewed, Open Access journal that provides a multidisciplinary forum for basic and clinical research as well as applied studies in the areas of adipocyte biology & physiology, lipid metabolism, metabolic syndrome, diabetes, paediatric obesity, genetics, behavioural epidemiology, nutrition & eating disorders, exercise & human physiology, weight control and health risks associated with obesity.
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